US4854152A - Ram guiding apparatus for a punch press - Google Patents

Ram guiding apparatus for a punch press Download PDF

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Publication number
US4854152A
US4854152A US07/190,538 US19053888A US4854152A US 4854152 A US4854152 A US 4854152A US 19053888 A US19053888 A US 19053888A US 4854152 A US4854152 A US 4854152A
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US
United States
Prior art keywords
guide
ram
oil
base plate
guiding apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US07/190,538
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English (en)
Inventor
August T. Portmann
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Bruderer AG
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Bruderer AG
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Assigned to BRUDERER AG reassignment BRUDERER AG ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: PORTMANN, AUGUST T.
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0088—Lubricating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides
    • B30B15/041—Guides

Definitions

  • the present invention relates to a ram guiding apparatus for a punch press.
  • the punch press includes a ram, at least one connecting rod driving ram, and a base plate defining the lower limit of the punching work space and guide columns operative to guide the ram.
  • a further object of the invention is to provide a ram guiding apparatus for a punch press having a ram which comprises a plurality of a guide sleeve projecting therefrom towards the base plate; in which every guide column is mounted to the base plate and projects guided into a respective guide sleeve; and in which every guide column is provided with piston rings sealing against the respective guide sleeve and having joints which are arranged staggered relative to each other.
  • a further object is to provide a ram guiding apparatus having guide sleeves which are releasably mounted to the base plate whereby every guide sleeve is replaceable together with its guide column as one unit without having to disassemble the punch press.
  • a further object is to provide a ram guiding apparatus for a punch press in which every guide sleeve is displaceable relative to its guide column in a horizontal direction such to allow for a thermal expansion, which direction is defined at least approximately by a straight line connecting the axis of the guide columns located diametrically opposite to each other relative to the center point of the base plate.
  • FIG. 1 illustrates a simplified section through a part of a punch press
  • FIG. 2 illustrates horizontal sections through varies embodiments of ram guiding designs
  • FIGS. 3-6 illustrate vertical sections through the respective embodiments shown in FIG. 2.
  • reference numeral 1 identifies a connecting rod of a punch press which is driven via a crank shaft or eccentric assembly according to well known designs.
  • This connecting rod 1 drives in turn ram 2.
  • the punching work space 3 is located under the ram 2 which punching work space 3 is limited at its bottom by the base plate 4 which is also called a punching table.
  • FIG. 1 illustrates, furthermore, a upper part 24 of the machine frame as well as a upper guide 25 and upper seal 26.
  • a oil collecting chamber 9 is located in or below respectively the base plate 4. Seated on ram 2 is an oil collecting ring 10 for collecting leaking oil.
  • Guide sleeves 6 are mounted to the ram 2 which guide sleeves 6 project towards the base plate 4. These guide sleeves 6 are releasably mounted to the ram 2 whereby releasable connection joint is generally identified by the reference numeral 27.
  • the particular illustration shows a flange joint, it is, however, obvious that any known design of a releasable joint or mounting, is possible.
  • the guide columns identified by the reference numeral 5 are releasably mounted to the base plate 4.
  • the oil collecting rings located on the base plate 4 are identified by the reference numeral 28 and any leakage oil collected in these oil collecting rings flows via passages 39 into the oil collecting chamber 9.
  • the means by which the guide columns 5 and guide sleeves 6 are guided relative to each other are identified in FIG.
  • a leakage oil channel 8 passes through each guide column 5 which leakage oil channel 8 communicates at the upper end of the respective guide column 5 with the inner chamber 12 of the guide sleeve 6 above the end of the guide column 5 and communicates at its lower end with the oil collecting chamber 9.
  • an oil collecting ring 10 of common generally known design is located on the ram 2 and intended to collect any leakage oil.
  • a transfer channel 11 is formed in the ram 2. This transfer channel 11 runs from the oil collecting ring 10 through the ram 2 and up to mentioned inner chamber 12 of one of the guide sleeves. As a result, the leakage oil which has collected in the oil collecting ring 10 will flow through the transfer channel 11 into the inner chamber 12 of the guide sleeves 6 and from there further through the leakage oil channel 8 into the oil collecting chamber 9.
  • a check valve 13 is located within the transfer channel 11.
  • This check valve 13 can be designed in accordance with any general known manner, important to note is, however, that the valve body 14 of this check valve 13 is arranged such that it moves in a horizontal direction. Therefore, the valve body 14 is never subject to accelerating forces which could detrimentally influence or hamper its function.
  • the object of the check valve 13 is to cause a forced discharge of the oil collected within the oil collecting ring 10.
  • attention is drawn now to the right hand side of FIG. 1.
  • the ram 2 and accordingly the respective guide sleeves 6 move relative to the fixed guide columns 5.
  • the volume of the inner chamber 12 of the guide sleeves 6 change continuously. This continuous changing of the volume is now utilized for a positive discharging of the leakage oil.
  • the check valve 13 or valve body 14 are designed so that the suction action lifts valve body 14 off it seat (against the action of a spring force so that valve body 14 moves to the right side of the punch press as shown in FIG. 1) so as to open the transfer channel 11.
  • the volume of the inner chamber 12 decreases and accordingly the pressure therein increases such that the check valve 13 closes.
  • the closing of the check valve 13 prevents a blowing out of air which would entrain leakage oil which also would be transported back.
  • the inner chamber 12 communicates via the leakage oil channel 8 with the oil collecting chamber 9. Due to the pressure build up in the inner chamber 12 an air flow is generated in the leakage oil chamber 8 which is directed towards the oil collecting chamber 9 such that the leakage oil is not only transported into the oil collecting chamber 9 by gravitational forces but by the air flow.
  • the leakage oil stemming from the upper guide and exiting from the upper seal of the punch press is pumped off or sucked off according to a absolutely novel procedure such that the discharging of the leakage oil proceeds by a positive action and not only by a gravitational force.
  • valves having the similar function are mounted inside the discharge channel 39. The valves, however, are not shown in the drawings.
  • Every guide sleeve 6 is releasably mounted to the ram 2 such as generally indicated by means of the reference numeral 27 in FIG. 1. Every guide column 5 is also releasably mounted to the base plate 4. This mounting is not specifically illustrated in FIG. 1 because such can be designed in accordance with any general known arrangement. For illustrative purposes only a mounting flange 30 is indicated in FIGS. 4-6. Because the guide sleeves 6 as well the guide columns 5 are releasably mounted to their respective supports every guide sleeve 6 can be exchanged together with its guide columns 5 as unit without the necessity of disassembling the punch press.
  • the illustrated design incorporates yet a further considerable advantage. It is possible that the guide columns may be damaged by metal pieces, produced by the material being punched, inpringing upon the columns. As a result, the various parts which make up the guide assemblies can be damaged.
  • guide sleeve 6 protects guide column 5. It is specifically to be noted that if the ram 2 is in its upper dead center the piston rings 7 forming the seals as well the guides 29 are completely encased by the respective guide sleeve 6. Accordingly, any damage or injury to the guide columns 5 at the areas of the seals and of the guides is absolutely impossible. This is in contrast to all known designs in which sections of the guide columns which cooperate with seals or with guide members are exposed to damage by flying debris.
  • FIG. 2 illustrates horizontal sections through four embodiments of designs taking up relative expansion differences between ram and base plate.
  • the illustration is a view of a section through a punch press having four guide columns which section proceeds along line II--II of FIG. 1.
  • Each of the four sectional views of FIG. 2 illustrate one individual design for the taking up of relative expansions between ram and base plate.
  • some particular designs of guide sleeves 6 and guide columns 5 are illustrated which allow a horizontal relative movement whereby the direction of such moving or displacement coincides at least approximately with a straight line 15 and 16, which connects the longitudinal axes of the guide columns 5 which are located diametrically opposite to each other relative to the center point 17 of the base plate 4.
  • FIG. 2 illustrates at the upper left hand side a section along line A--A of FIG. 3, and FIG. 3 illustrates in turn a section along line III--III of FIG. 2.
  • FIG. 3 illustrates a guide column 5 including its leakage oil channel 8 and lubricating oil supply channel 31.
  • Two piston rings 7 are installed in the guide column 5 which piston rings 7 seal against the guide sleeve 6.
  • reference numeral 27 indicates the releasable mounting or connection, respectively between the guide column 6 and the ram 2 without illustrating any particulars which are of well known design.
  • the guide column 5 is designed to have an oval or at least approximately an elliptical cross sectional shape.
  • the major axis 21 of the illustrated ellipse extends perpendicularly to the straight line 16 connecting the above identified axis 18 of the corresponding guide columns 5.
  • the free space between the outer surface of the guide column 5 and the inner surface of the guide sleeve 6 is designed exaggerated for illustration purposes only.
  • the relative movements due to differential thermal expansions lie within the range 1/100 mm. It is now obvious that the relative movement between the guide sleeve 6 and the guide column 5 is possible in the direction of the above mentioned straight line 16.
  • a further embodiment is illustrated in the upper right hand quadrant of FIG. 2.
  • FIG. 2 illustrates a section along line B--B of FIG. 4 and correspondingly FIG. 4 illustrates a section along line IV--IV of FIG. 2.
  • a guide column 5 including the exemplary mounting flange 30, the leakage oil channel 8 and lubricating oil supply channel 31 as well as the sealing piston ring 7.
  • the guide sleeve 6 as well as the releasable mounting 27 are illustrated.
  • the guide column 5 is provided with a head section 20 which includes two planar side face 32 such as indicated in FIG. 2. This head section 20 having a somewhat elongated shape is inserted into a guide mmber 19 which can also be made in two parts such as the illustrated example indicates.
  • This guide member 19 abuts or contacts, respectively the inner surface of the guide sleeve 6.
  • the clearance between the curvilinearly extending face sides of the head section 20 and the corresponding sections of the inner surface of the guide sleeve 6 is again illustrated overly large for sake of clarity. It is now obvious that the relative movement between the guide sleeve 6 with the guide members 19 and the head section 20 of the guide column 5 is possible in direction of the straight line 15.
  • the quadrant at the lower right hand side of FIG. 2 illustrates a section along line D--D of FIG. 6 which illustrates in turn the section along line IV--IV of FIG. 2.
  • This embodiment has a certain similarity to the embodiment of FIG. 4. The difference is that the head section 20 of the guide column 5 is kept somewhat shorter and that the guide member 19 is a one piece structure. Also, a relative movement in the direction of the straight line 16 is possible.
  • FIG. 5 illustrates a section along line V--V of FIG. 2 and that illustration is a view of a sectional long along line C--C of FIG. 5.
  • an excentrically located trunnion 22 is arranged on top of the guide column 5. This trunnion projects into the guide member 23 having a correspondingly eccentrically located receiving opening.
  • the axis 18, that is the center axis of the column 5 or sleeve 6 and the axis line 33 of the trunnion 22 defines a straight line 34 which extends perpendicularly to the connecting straight line 15.
  • a relative movement between the guide column 5 and the guide sleeve 6 directed approximately parallel to the connecting straight line 15 generates a corresponding rotational movement of the guide member 23 in the guide sleeve 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
US07/190,538 1987-05-22 1988-05-05 Ram guiding apparatus for a punch press Expired - Lifetime US4854152A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2001/87 1987-05-22
CH2001/87A CH672454A5 (fr) 1987-05-22 1987-05-22

Publications (1)

Publication Number Publication Date
US4854152A true US4854152A (en) 1989-08-08

Family

ID=4223573

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/190,538 Expired - Lifetime US4854152A (en) 1987-05-22 1988-05-05 Ram guiding apparatus for a punch press

Country Status (7)

Country Link
US (1) US4854152A (fr)
JP (1) JPH07110439B2 (fr)
CH (1) CH672454A5 (fr)
DE (1) DE3813235C2 (fr)
FR (1) FR2615435B1 (fr)
GB (1) GB2205267B (fr)
IT (2) IT8847989A0 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5467705A (en) * 1993-08-17 1995-11-21 The Minster Machine Company Oil control system for a press
US5623870A (en) * 1993-08-17 1997-04-29 The Minster Machine Company Oil mist eliminator for a press oil control system
US5746087A (en) * 1995-07-19 1998-05-05 The National Machinery Company Heading slide guiding system
US6367304B1 (en) 1999-09-10 2002-04-09 Schuler Pressen Gmbh & Co. Kg Forming machine with cooling apparatus
US20030054063A1 (en) * 2001-02-15 2003-03-20 Roberto Trebbi Tablet press machine
US20040216424A1 (en) * 1995-06-30 2004-11-04 Lafarge Platres Construction assembly of plaster boards and a method of assembling a plurality of plaster boards
CN105363931A (zh) * 2015-12-04 2016-03-02 苏州广硕精密电子有限公司 一种自动润滑的导柱导套组件
CN108067554A (zh) * 2017-12-30 2018-05-25 宁波澳玛特高精冲压机床股份有限公司 一种冲床导柱进油、集油结构
CN110640005A (zh) * 2019-10-22 2020-01-03 浙江金澳兰机床有限公司 一种自动添加润滑脂的电气冲床

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0721297U (ja) * 1993-08-31 1995-04-18 アイダエンジニアリング株式会社 プレス機械のスライドガイド装置
GB2293125B (en) * 1994-09-13 1997-06-04 Minster Machine Co Oil mist eliminator for a press oil control system
DE59710756D1 (de) * 1997-03-26 2003-10-23 Rolf Haenggi Stanzpresse mit Werkzeugvorrichtung
DE59812614D1 (de) * 1998-04-30 2005-04-07 Bruderer Ag Frasnacht Arbon Stanzpresse, insbesondere Schnelläuferpresse

Citations (5)

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Publication number Priority date Publication date Assignee Title
US3861192A (en) * 1973-02-06 1975-01-21 Toyota Motor Co Ltd Press for cold extrusion of deep-holed or bottomed cylindrical articles
US4419878A (en) * 1980-08-28 1983-12-13 Sms Schloemann Siemag Aktiengesellschaft Hydraulic drop forging press of above-construction with prestressed press frame
JPS5992125A (ja) * 1982-11-17 1984-05-28 Ig Tech Res Inc プレス型用ダイセツト
SU1159801A1 (ru) * 1983-12-02 1985-06-07 Cheboxarsky Mashstr Z УЗЕЛ КРЕПЛЕНИЯ К ПОЛЗУНУ ПРЕССА ШТАМПА с расположенными в его верхней части направляющими колонками
DE3712121A1 (de) * 1986-04-11 1987-10-22 Amada Co Ltd Blechbiegemaschine

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
US1729898A (en) * 1927-11-30 1929-10-01 Ruggles John Milton Die shoe and guide for punch presses
US2148855A (en) * 1936-10-03 1939-02-28 Bliss E W Co Guide for reciprocating platens
DE976095C (de) * 1951-01-26 1963-02-21 Feinpruef Feinmess Und Pruefge Schmierung fuer die Saeulen von Saeulenfuehrungsgestellen
US2869177A (en) * 1955-08-10 1959-01-20 Us Rubber Co Guides for reciprocable platens
DE1427399A1 (de) * 1962-03-16 1969-07-10 Hydraulik Gmbh Einstellbare Saeulenfuehrung an einer Presse oder dergleichen Maschine
US3386781A (en) * 1966-01-24 1968-06-04 Lempco Ind Inc Die set having readily demountable guide pins and bushings
CH543375A (de) * 1971-10-01 1973-10-31 Bruderer Ag Einrichtung zur Führung des Bärs einer Stanzmaschine
DE2412769C2 (de) * 1974-03-16 1975-11-20 Philips Patentverwaltung Gmbh, 2000 Hamburg Säulen-Führung für die PreBplatte einer Presse
US3913375A (en) * 1974-05-28 1975-10-21 Texas Instruments Inc Self lubricating tool
CH568848A5 (fr) * 1974-08-29 1975-11-14 Bruderer Ag
DE2909878C2 (de) * 1979-03-14 1982-12-23 Carl Schenck Ag, 6100 Darmstadt Vorrichtung zur Abführung des Leckflusses eines hydraulischen Lagermediums
US4376410A (en) * 1981-09-08 1983-03-15 The Minster Machine Company Press guide structure
JPS59223122A (ja) * 1983-06-02 1984-12-14 Mitsubishi Electric Corp プレス金型に於けるガイド部の自動給油装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861192A (en) * 1973-02-06 1975-01-21 Toyota Motor Co Ltd Press for cold extrusion of deep-holed or bottomed cylindrical articles
US4419878A (en) * 1980-08-28 1983-12-13 Sms Schloemann Siemag Aktiengesellschaft Hydraulic drop forging press of above-construction with prestressed press frame
JPS5992125A (ja) * 1982-11-17 1984-05-28 Ig Tech Res Inc プレス型用ダイセツト
SU1159801A1 (ru) * 1983-12-02 1985-06-07 Cheboxarsky Mashstr Z УЗЕЛ КРЕПЛЕНИЯ К ПОЛЗУНУ ПРЕССА ШТАМПА с расположенными в его верхней части направляющими колонками
DE3712121A1 (de) * 1986-04-11 1987-10-22 Amada Co Ltd Blechbiegemaschine

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5623870A (en) * 1993-08-17 1997-04-29 The Minster Machine Company Oil mist eliminator for a press oil control system
GB2281355B (en) * 1993-08-17 1997-07-23 Minster Machine Co Oil control system for a press
US5791655A (en) * 1993-08-17 1998-08-11 The Minster Machine Company Method for controlling oil in a press
US5467705A (en) * 1993-08-17 1995-11-21 The Minster Machine Company Oil control system for a press
US20040216424A1 (en) * 1995-06-30 2004-11-04 Lafarge Platres Construction assembly of plaster boards and a method of assembling a plurality of plaster boards
US5746087A (en) * 1995-07-19 1998-05-05 The National Machinery Company Heading slide guiding system
US6367304B1 (en) 1999-09-10 2002-04-09 Schuler Pressen Gmbh & Co. Kg Forming machine with cooling apparatus
US20030054063A1 (en) * 2001-02-15 2003-03-20 Roberto Trebbi Tablet press machine
US20050008730A1 (en) * 2001-02-15 2005-01-13 I.M.A. Industria Macchine Automatiche S.P.A. Tablet press machine
US6866493B2 (en) * 2001-02-15 2005-03-15 I.M.A. Industria Macchine Automatiche S.P.A. Tablet press machine
US7153118B2 (en) 2001-02-15 2006-12-26 I.M.A. Industria Macchine Automatiche S.P.A. Tablet press machine
CN105363931A (zh) * 2015-12-04 2016-03-02 苏州广硕精密电子有限公司 一种自动润滑的导柱导套组件
CN108067554A (zh) * 2017-12-30 2018-05-25 宁波澳玛特高精冲压机床股份有限公司 一种冲床导柱进油、集油结构
CN110640005A (zh) * 2019-10-22 2020-01-03 浙江金澳兰机床有限公司 一种自动添加润滑脂的电气冲床

Also Published As

Publication number Publication date
IT8847989A0 (it) 1988-05-19
FR2615435B1 (fr) 1991-02-22
JPS63309399A (ja) 1988-12-16
DE3813235A1 (de) 1988-12-08
GB2205267A (en) 1988-12-07
IT1219598B (it) 1990-05-18
FR2615435A1 (fr) 1988-11-25
JPH07110439B2 (ja) 1995-11-29
DE3813235C2 (de) 1996-08-01
CH672454A5 (fr) 1989-11-30
GB2205267B (en) 1991-11-27
GB8811146D0 (en) 1988-06-15

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